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Both are a hollow ball of cells

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In sea star development how does the overall size of the blastula compare with that of the fertilized egg?

The blastula in sea star development is larger than the fertilized egg. As the zygote undergoes multiple rounds of cell division, it forms a hollow ball of cells called the blastula. This growth is accompanied by an increase in overall size.


What factor causes a frog's morula blastula and gastrula to look different than those of a sea star?

Distribution of yolk cells.


How does the morula stage of sea star development differ from the blastula stage?

The blastula is a single-layered ball with a fluid-filled cavity called the BLASTOCOEL in the middle (which the morula stage lacks). --Side note: The morula is a ball of cells about the same size as the original zygote and the large number of embryonic cells of the morula arrange themselves into a blastula, with the blastocoel in the middle.


Why will you not find frogs in sea?

Frogs are not adapted to live in saltwater.


Were can you find frogs?

Frogs can be found on every continent but Antarctica.


Why will you not find frogs in the sea?

Frogs are not adapted to live in salt water.


Is a sea turtele and a frog reptize?

Sea turtles are a type of reptile. Frogs, however, are not reptiles. Instead, frogs are amphibians.


How did a sea star be called a sea star?

A sea star is called a sea star simply because of where it lives (the sea) and what it looks like (a star), simple!


What are all of the frogs signs in Legend of Zelda Phantom Hourglass?

Some where on the 4 seas there are some golden frogs who like to jump out of the water. Try to shoot them in mid-air with your cannon I will tell how many are in each sea South Western sea: 2 frogs South Eastern sea: 2 frogs North Western sea: 2 frogs North Eastern sea: 1 frog Total amount: 7 frogs


How are frogs adapted on land and in the sea?

they can breath


Do frogs live in the sea or the land?

Frogs do not live in the sea, they require fresh water, such as ponds or swamps. They are amphibians, so that they live both on land and in the water.


Is a sea star an invertabrate?

no, a sea star is a vertebrate!